Sun Microsystems Sun Workstation 100U System Manager's Manual page 34

Sun 100/150 Installation Manual
Subsystem Set-Up
8. There are two switches of interest on the power supply unit. The
POWER ON/OFF
switch
must be left
ON
all the time after installation. The
LOCAL/REMOTE
switch must be set to
REMOTE
at all times.
9. The power supply unit itself should be connected to a standard AC line. The brown wire
in the line goes to the first Phillips screw of the series starting at the lower left rear of the
power l5upply unit. The I5crew il5 'under' the label "INPUT". The blue wire in the line goes
to the second screw, under the label "AC". The green wire goes to "FG", frame ground.
10. After connecting the M2284 to its power supply, hook up its control and data cables as fol-
lows.
The M2284 is connected to the card cage backpanel via two flat ribbon cables. The wider
of the cables is a 60-pin control cable. Plug the control cable into the socket labelled
'DISK
COMMAND'
on the backpanel. The narrower cable (25-pin) is the disk data cable; plug it
into the socket labelled
'DISK DATA
#%' on the backpanel, where % is
°
through 3. The first
disk drive must be cabled to connector
'DISK DATA
#0'; the second must be cabled to the
'DISK DATA
#1' connector.
After connecting the tlat ribbon cables to the backpanel of the Sun Workstation, connect
the other ends of the cables to the disk drive. The 60-pin cable (connected to
'DISK COM-
MAND'
on the Sun Workstation backpanel) must be inserted into location 'OM2' in the disk
drive. The narrower cable (connected to
'DISK DATA
#%' on the Sun Workstation back-
panel) must be inserted into location 'OM3' in the disk drive. The red stripe on both
cables should be to your left as you look at the disk drive from the back. Both cables
should be passed through the cable-routing bracket located directly above their respective
termination points on the disk drive. At the same time, the grounding straps from the rib-
bon cables' shield must be secured using the hardware on the routing bracket.
11. Make sure that the line-termination board is securely seated into 'OMl' on the disk drive
(if you have more than one disk, the line-termination board is required only on the lad disk
drive in a dai5y-chain configuration). The grounding 5trap must be fastened to 'TRMl-2'
on the terminal block (marked "OV(2)").
For more information on disk interface and cables, refer to sections 3.5.3 and 3.5.5 of the
Fujitsu 228X Customer Engineering Manual.
The disk controller installed in the card cage of both the Model 100U and the 150U is a Xylogics
450 controller which
Cdn
control up to four drives; however, the system is configured for a max-
imum of two drives per controller. As shipped, each drive is configured as the first drive, that is,
unit number 0, by setting all sections on switch SWI at location J2/Jl on the CQFM PCB
assembly to OFF.
Revision H of 12 March
1984 3-5